US3736636A - An apparatus for adjusting the altitude of the chord of an expanding roll - Google Patents

An apparatus for adjusting the altitude of the chord of an expanding roll Download PDF

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Publication number
US3736636A
US3736636A US00149526A US3736636DA US3736636A US 3736636 A US3736636 A US 3736636A US 00149526 A US00149526 A US 00149526A US 3736636D A US3736636D A US 3736636DA US 3736636 A US3736636 A US 3736636A
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United States
Prior art keywords
central shaft
collar
clutch teeth
bushes
discs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00149526A
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English (en)
Inventor
K Tawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamauchi Rubber Industry Co Ltd
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Yamauchi Rubber Industry Co Ltd
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Filing date
Publication date
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Publication of US3736636A publication Critical patent/US3736636A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/003—Bowed or curved rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02—Shape or construction of rolls
    • B21B27/03—Sleeved rolls
    • B21B27/05—Sleeved rolls with deflectable sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0206—Controlled deflection rolls
    • D21G1/0213—Controlled deflection rolls with deflection compensation means acting between the roller shell and its supporting member

Definitions

  • An apparatus for adjusting the altitude of a chord of an expanding roll characterized in comprising: a central shaft bent'in an arc-shape with the amount of its radial deflection increasing successively toward the middle thereof-with respect to an imaginary straight line corresponding to the axis of an unbent central shaft; a plurality of eccentric discs or bushes rotatably fitted around said shaft and being spaced lengthwise along the axis thereof, said bushes having the eccentricities increasing successively toward the middle of said central shaft; a plurality of sleeves in which said bushes are inserted and are rotatably supported therein by means of intermediate ball bearings, a rubber roll covering said sleeves and integrated therewith to form a single rotatable unit; a plurality of coupling members, each of which penetrates through each of said bushes respectively to intercouple therewith; a bearing journaling said central shaft so as to keep said
  • An object of the present invention is to provide an apparatus for adjusting the altitude of the chord of an expanding roll comprising; a central shaft bent in an arc-shape; a plurality of eccentric discs or bushes fitted rotatably around said central shaft with spacing there between in the axial direction, said bushes having eccentricities increasing successively toward the middle of said central shaft; a plurality of sleeves in which said bushes are inserted and with intermediate ball bearings being provided therebetween; and a rubber roll cover ing said sleeves and integrated therewith in a unit, said rubber roll thus being disposed eccentrically relative to said central shaft.
  • Another object of the present invention is to provide an apparatus for adjusting the altitude of the chord of an expanding roll, wherein a central shaft is journaled at one end by a bearing so as normally to be fixed against rotation but, in case of need, being capable of rotation therein. Said central shaft is rotatable together with the bushes, relative to said bearing so as to effect deflection of said rubber roll for the purpose of adjusting the altitude of the chord thereof.
  • a further object of the present invention is to provide an apparatus for adjusting the altitude of the chord of an expanding roll, wherein the interconnection be tween said central shaft and each of bushes is cut off by means of pulling out a connecting pin which connects together the flange of a collar fixed to said central shaft and the flange of a bush disposed at the outer axial end of a line of bushes, each of said bushes being intercoupled with one another by coupling members, while the interconnection between the flange of said bush and the flange of said bearing is effected by means of a second connecting pin and thereafter said central shaft is rotated so as to result in rotation of each bush relative thereto in order to cause the deflection of a rubber roll for adjustment of the altitude of the chord, said bushes are then kept stationary along with said bearing, while said central shaft is rotated.
  • a still further object of the present invention is to provide an apparatus for adjusting the altitude of the chord of an expanding roll, wherein all said bushes are intercoupled with one another by coupling members, and a collar fitted around said central shaft is moved toward the bush-side by means of an operating lever in order to disengage the clutching teeth thereof from the clutching teeth of the bearing and concurrently engage the teeth, defined on the other side thereof, with the embodiment of the present invention.
  • FIG. 1 is a partial longitudinal sectional view showing the left end portion of a first preferred embodiment according to the present invention.
  • FIG. 2 is a partially longitudinal sectional view showing the right end portion of an embodiment illustrated in FIG. 1.
  • FIG. 3 is a cross-sectional view taken along the line IIIIII in FIG. 1.
  • FIG. 4. is an enlarged sectional view of a portion denoted by A in FIG. 1.
  • FIG. 5 is a partially longitudinal sectional view show ing the left end portion of a second embodiment of the present invention.
  • FIG. 6 is a partially longitudinal sectional view showing the right end portion of the embodiment shown in FIG. 5.
  • FIG. 7 is a cross-sectional view taken along the line VII-VII of FIG. 5.
  • FIG. 8X, 8Y and 82 are transverse sectional views taken along a section adjacent to the middle of the central shaft for the purpose of illustrating how to adjust the altitude of the chord of a rubber roll, wherein there are shown the relative dispositions of a central shaft, an eccentric bush and a rubber roll, in the respective cases of a normal position (FIG. 8X) and the adjusted positions (FIGS. 8Y and 8Z).
  • An apparatus for adjusting the altitude of the chord of an expanding roll comprises a central shaft 1 journaled at both its ends by bearings 2,2 and deflected in such a manner that the magnitude of its deflection increases successively toward the middle of the central shaft, the deflection being represented by s.
  • a plurality of discs or bushes 3,3 which have eccentricities increasing successively toward the middle of the central shaft, are fitted around said central shaft.
  • a plurality of sleeves, 5 are rotatably mounted on said bushes by means of intermediate ball bearings 4.
  • the bearing 2, is provided with a worm gear 7 mounted at the center portion thereof.
  • a worm 8 engages said worm gear and it is further provided with a handle 9 fixedly connected to rotate said worm about its axis.
  • a cover 10 of said bearing 2 is firmly secured thereto by bolts 11,11 and said cover applies a pressure against said worm gear so as to releasably fix said central shaft 1 against rotation with respect to said bearing
  • a collar 12 is fixedly fitted around the central shaft 1 outwardly of an adjacent to said. bush 3' positioned at one axial end of the line of bushes.
  • a first connecting pin 14 is inserted through a perforation in a flange 13 of said collar 12 and the inner end of said pin is removably inserted into one of a plurality of holes provided on the side-wall of a connecting sleeve 15 which is fixed to an positioned alongside the bush 3 at the outer end of the line of bushes.
  • a second connecting pin 22 is inserted loosely through a perforation defined at the wall portion 21 of said bearing 2 and extends into one of a plurality of holes provided on said disk 20. It should be noted that each bush is intercoupled with each other by coupling members 23 which extend through openings in said bushes.
  • the reference numeral 31 denotes a central shaft journaled by bearings 32,32, and said shaft is radially deflected with the magnitude of its deflection increasing successively toward the middle thereof.
  • a plurality of bushes 33,33 are fitted around said central shaft, and said bushes are formed to have eccentricities which increase successively toward the middle of the central shaft.
  • Each of the foregoing bushes is inserted into one of a plurality of sleeves 35 respectively and is rotatably supported therein by intermediate ball bearings 34.
  • a rubber roll 36 covers all of said sleeves 35 entirely.
  • a worm gear 37 is fixed to said central shaft 31 at the middle of its portion journaled by said bearing 32, and a worm engaging with said worm gear is provided within said'bearing '32.
  • a handle 39 is fixed to said worm.
  • Bolts 41,41 tightly fasten a cover 40 of said bearing 32 to the body thereof and thereby said cover presses said worm gear 37 toward the body of said hearing, so as to effect a fixation of the central shaft 31 in the bearing 32.
  • a collar 38 provided with teeth 44 at one end thereof, for alternate engagement with the teeth 42 of the cover 40 and with the teeth 43 defined on one side of said worm gear 37.
  • An annular groove 48 is defined on the periphery of said collar 38.
  • a change-over lever, i.e., an operating lever 50 is journaled, substantially at its middle, by a bearing 49 mounted on the cover 40 of said bearing 32.
  • the lower portion of said change-over lever,50 is formed into forked ends 51, and said forked ends are provided with projections 52 disposed in said groove 48.
  • Said connecting sleeve 45 is journaled by a bearing 53 and is provided, at its inner end, with teeth 54 to engage with the teeth 55 defined on the opposing face of the eccentric bush 33.
  • All of the eccentric bushes 33,33 are integratedly incorporated with one another by leaf springs 57 disposed in and through grooves defined on the inner side of said eccentric bushes.
  • the roll should be set up in a normal position in order to make the altitude of the chord a maximum, as illustrated in FIG. 8 (X).
  • FIG. 8X, 8Y and 8Z there are shown the crosssections of the rubber roll, the eccentric bush and the central shaft taken at the middle thereof, together with a broken line, corresponding to the cross-section of the imaginary position of a non-bent central shaft, i.e., as taken at the center of bearing 2.
  • the center of the projected cross-section of the imaginary non-bent central shaft is denoted by a
  • the center of the cross-section of the actual bent shaft at the middle is denoted by a
  • the rubber roll should be displaced to an inclined position shown in FIG. 8Y or FIG. 8Z. That is; in the former position, a segment of line a,a is inclined at an angle a with respect to a perpendicular line passing through point a and thereby a is displaced transversely a distance I from said perpendicular line and accordingly the point b is displaced on a perpendicular line passing through the point a, while in the latter position, the points a and b are positioned on a line inclined at an angle B with respect to a perpendicular line passing through the point a.
  • the maximum altitude L is decreased to the altitudes L, and L respectively.
  • the first connecting pin 14 which is inserted into the connecting sleeve 15 through the perforation provided at the flange portion 13 of a collar 12, is pulled out from sleeve 15 by overcoming the resilient force of the spring 18, and thereafter is turned so as to be checked against the wall surface of a connecting disk 20 by a checking arm 17 provided on a flange 16 of said first connecting pin 14.
  • the center of a bush positioned near the middle of the central shaft i.e., the center 12 of a rubber roll 6 is also moved transversely by the distance 1 from the perpendicular line passing the center a.
  • the altitude of the chord measured as L in a normal position shown in FIG. 8X is decreased to the altitude L, illustrated in FIG. 8Y.
  • the first connecting pin 14 is again inserted by the force of the spring 18 into a hole provided on the side wall of said connecting sleeve 15 when it is turned back so as to release the checking arm 17 thereof from the restraint of the wall surface of the connecting disk 20 and accordingly the rubber roll 6 is maintained in its status, as it is.
  • handle 39 is rotated so as to rotate the worm and worm gear 37 engaging with each other to result in rotation of the central shaft 31 which causes a segment of line a-a to be inclined by angle 0:.
  • the forked legs 51 are moved leftwardly to effect the leftward movement of the collar 38 also, which causes the teeth 44 on one end thereof to disengage from the teeth 42 of the cover and, at the same time, causes the same to engage with the teeth 43 of the worm gear 7. Meanwhile, the teeth 47 on the other end of said collar are also moved leftwardly within the teeth 46 of the connecting sleeve 45; but not be moved enough to be disengaged therefrom.
  • the altitude of the chord is altered from L to L
  • the fixation of the central shaft to the bearing 32 should be again effected in the same manner as aforementioned.
  • An expanding roll construction comprising:
  • journal means journaling said central shaft for rotation about said axis
  • connecting means for selectively releasably driv: ingly connecting the disc at one axial end of said central shaft with (I) said central shaft, or (2) said journal means, so that the discs can be rotated with said central shaft or can be held against rotation while said central shaft rotates.
  • said connecting means comprises a collar I fixed to saidcentral shaft, a connecting member fixed to said disc at one axial end of said central shaft, a flange fixed to said journal means a first connecting pin for releasably connecting said collar to said connecting member and a second connecting pin for releasably connecting said flange to said connecting member.
  • said connecting means comprises a collar slidably mounted on said shaft between said journal means and said disc at one axial end of said central shaft, said collar having two sets of clutch teeth at opposite axial ends thereof, said disc having a third set of clutch teeth clutched to the set of clutch teeth on the adjacent end of said collar, said central shaft having a fourth set of clutch teeth and said journal means having a fifth set of clutch teeth, said fourth and fifth sets of clutch teeth being alternatively clutchable to said set of clutch teeth at the other end of said collar, and an operating level pivotally mounted on said journal means and connected to said collar for moving said collar between positions in which said fourth and fifth sets of clutch teeth are respectively clutched to the set of clutch teeth at the other end of said collar.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Support Of The Bearing (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Paper (AREA)
  • Massaging Devices (AREA)
US00149526A 1970-06-05 1971-06-03 An apparatus for adjusting the altitude of the chord of an expanding roll Expired - Lifetime US3736636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45048612A JPS4928861B1 (enrdf_load_stackoverflow) 1970-06-05 1970-06-05

Publications (1)

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US3736636A true US3736636A (en) 1973-06-05

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US00149526A Expired - Lifetime US3736636A (en) 1970-06-05 1971-06-03 An apparatus for adjusting the altitude of the chord of an expanding roll

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US (1) US3736636A (enrdf_load_stackoverflow)
JP (1) JPS4928861B1 (enrdf_load_stackoverflow)
DE (1) DE2127853A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852229A (en) * 1988-10-11 1989-08-01 Beloit Corporation Self-loading controlled deflection roll
US20060183613A1 (en) * 2003-06-13 2006-08-17 Stowe Woodward Ag Spreader roll

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519084A1 (de) * 1985-05-28 1986-12-04 Windmöller & Hölscher, 4540 Lengerich Walze, vorzugsweise gegendruckwalze eines tiefdruckformzylinders, mit durchbiegbarem walzenmantel

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547975A (en) * 1949-08-13 1951-04-10 John D Robertson Expander and contractor roll
US2960749A (en) * 1958-08-20 1960-11-22 Mount Hope Machinery Ltd Expanding and contracting rolls
US3213513A (en) * 1962-08-21 1965-10-26 Mount Hope Machinery Ltd Sectional curved roll
US3308519A (en) * 1964-04-23 1967-03-14 Mount Hope Machinery Ltd Sectional curved roll with reinforcing rings
US3357073A (en) * 1965-05-10 1967-12-12 American Cloth Strait Company Curved roll
US3376620A (en) * 1966-01-03 1968-04-09 Kimberly Clark Co Drive mechanism for bowed rolls
US3500524A (en) * 1968-03-29 1970-03-17 Mount Hope Machinery Ltd Adjustable-deflection roll

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547975A (en) * 1949-08-13 1951-04-10 John D Robertson Expander and contractor roll
US2960749A (en) * 1958-08-20 1960-11-22 Mount Hope Machinery Ltd Expanding and contracting rolls
US3213513A (en) * 1962-08-21 1965-10-26 Mount Hope Machinery Ltd Sectional curved roll
US3308519A (en) * 1964-04-23 1967-03-14 Mount Hope Machinery Ltd Sectional curved roll with reinforcing rings
US3357073A (en) * 1965-05-10 1967-12-12 American Cloth Strait Company Curved roll
US3376620A (en) * 1966-01-03 1968-04-09 Kimberly Clark Co Drive mechanism for bowed rolls
US3500524A (en) * 1968-03-29 1970-03-17 Mount Hope Machinery Ltd Adjustable-deflection roll

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852229A (en) * 1988-10-11 1989-08-01 Beloit Corporation Self-loading controlled deflection roll
US20060183613A1 (en) * 2003-06-13 2006-08-17 Stowe Woodward Ag Spreader roll

Also Published As

Publication number Publication date
JPS4928861B1 (enrdf_load_stackoverflow) 1974-07-30
DE2127853A1 (de) 1971-12-16

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